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Zonal flow triggers the L-H transition in the Experimental Advanced Superconducting Tokamak
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10.1063/1.4737612
/content/aip/journal/pop/19/7/10.1063/1.4737612
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/7/10.1063/1.4737612
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) A representative limit cycle oscillation in the floating potential, (b) and density, (c) PDF of the energy recovery time, and (d) XUV radiation.

Image of FIG. 2.
FIG. 2.

(a), turbulent (b), and flow (c) fluctuation amplitude during L–H transition. Energy transfer between turbulence and shear flow (d) and normalized to turbulent fluctuation amplitude and energy recovery time (e). Data from 1.0–1.5 cm inside LCFS denoted by blue and red curves. Data taken 1 cm outside of LCFS in the SOL region denoted by green curve.

Image of FIG. 3.
FIG. 3.

Hodograph of turbulent and flow energies during L-H transition.

Image of FIG. 4.
FIG. 4.

Predator-prey model with fast power ramp up. Evolution of the turbulent, ZF, and mean flow (MF) amplitudes (a), the zero frequency ZF shearing (b), and normalized energy transfer (c). Model is described in detail in Ref. 22.

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/content/aip/journal/pop/19/7/10.1063/1.4737612
2012-07-23
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Zonal flow triggers the L-H transition in the Experimental Advanced Superconducting Tokamak
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/7/10.1063/1.4737612
10.1063/1.4737612
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